The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Feb. 22, 1989
Applicant:
Inventor:
Kyriacos Joannou, Wayland, MA (US);
Assignee:
Pericomp Corporation, Natick, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 57 ; 360 77010 ; 360121 ;
Abstract
A novel apparatus and method is described for recording a pattern of track positioning servo signals at select locations of a magnetic tape for use in aligning a single track read head with each of the tracks defined by the signal pattern. The pattern is provided by recording two different signals with two write heads so that the signals are recorded as alternating strips. The differences between the two signals are then used to define the each track center.